| Chioggia to Oberkirch | 302.70 mi (487.15 km) |
| Chioggia to Obernburg am Main | 351.12 mi (565.07 km) |
| Chioggia to Obernkirchen | 507.61 mi (816.93 km) |
| Chioggia to Oberschleissheim | 212.08 mi (341.30 km) |
| Chioggia to Oberstdorf | 178.89 mi (287.89 km) |
| Chioggia to Obertraubling | 258.89 mi (416.64 km) |
| Chioggia to Obertshausen | 371.23 mi (597.44 km) |
| Chioggia to Oberursel | 384.84 mi (619.33 km) |
| Chioggia to Ochsenfurt | 323.06 mi (519.92 km) |
| Chioggia to Ochsenhausen | 225.96 mi (363.65 km) |
| Chioggia to Ochtrup | 535.22 mi (861.35 km) |
| Chioggia to Odenthal | 466.67 mi (751.03 km) |
| Chioggia to Oelde | 494.28 mi (795.46 km) |
| Chioggia to Oelsnitz | 359.12 mi (577.95 km) |
| Chioggia to Oer-Erkenschwick | 499.77 mi (804.30 km) |
